IPv4 R&E Routing Table Report 23:05 GMT Tue 13 Dec, 2022 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 901214 Prefixes after maximum aggregation (per Origin AS): 343244 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 443464 Number of IPv4 prefixes with a valid ROA: 364688 Number of IPv4 prefixes with an invalid ROA: 1498 Number of IPv4 prefixes with no ROA: 535028 Total ASes present in the Internet Routing Table: 73771 Prefixes per ASN: 12.22 Origin-only ASes present in the Internet Routing Table: 63356 Origin ASes announcing only one prefix: 26079 Transit ASes present in the Internet Routing Table: 10415 Transit-only ASes present in the Internet Routing Table: 425 Paths with bogon ASNs present in the IPv4 Routing Table: 32 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1031 Number of instances of unregistered ASNs: 1031 Number of 32-bit ASNs allocated by the RIRs: 40873 Number of 32-bit ASNs visible in the Routing Table: 33806 Prefixes from 32-bit ASNs in the Routing Table: 164620 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 517 Number of addresses announced to Internet: 3061603584 Equivalent to 182 /8s, 124 /16s and 93 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 302885 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233293 Total APNIC prefixes after maximum aggregation: 67721 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 228152 Unique aggregates announced from the APNIC address blocks: 97253 APNIC Region origin ASes present in the Internet Routing Table: 13081 APNIC Prefixes per ASN: 17.44 APNIC Region origin ASes announcing only one prefix: 3819 APNIC Region transit ASes present in the Internet Routing Table: 1753 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8395 Number of APNIC addresses announced to Internet: 773169408 Equivalent to 46 /8s, 21 /16s and 161 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 266322 Total ARIN prefixes after maximum aggregation: 121182 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 267920 Unique aggregates announced from the ARIN address blocks: 129326 ARIN Region origin ASes present in the Internet Routing Table: 18994 ARIN Prefixes per ASN: 14.11 ARIN Region origin ASes announcing only one prefix: 6973 ARIN Region transit ASes present in the Internet Routing Table: 1888 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4686 Number of ARIN addresses announced to Internet: 1288061696 Equivalent to 76 /8s, 198 /16s and 67 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 254866 Total RIPE prefixes after maximum aggregation: 119729 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 251657 Unique aggregates announced from the RIPE address blocks: 155679 RIPE Region origin ASes present in the Internet Routing Table: 28175 RIPE Prefixes per ASN: 8.93 RIPE Region origin ASes announcing only one prefix: 12016 RIPE Region transit ASes present in the Internet Routing Table: 3995 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 40 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10916 Number of RIPE addresses announced to Internet: 715968000 Equivalent to 42 /8s, 172 /16s and 206 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 116983 Total LACNIC prefixes after maximum aggregation: 28170 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116290 Unique aggregates announced from the LACNIC address blocks: 48765 LACNIC Region origin ASes present in the Internet Routing Table: 10992 LACNIC Prefixes per ASN: 10.58 LACNIC Region origin ASes announcing only one prefix: 2671 LACNIC Region transit ASes present in the Internet Routing Table: 2263 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8759 Number of LACNIC addresses announced to Internet: 175991808 Equivalent to 10 /8s, 125 /16s and 108 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 28719 Total AfriNIC prefixes after maximum aggregation: 5669 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 36678 Unique aggregates announced from the AfriNIC address blocks: 12017 AfriNIC Region origin ASes present in the Internet Routing Table: 1714 AfriNIC Prefixes per ASN: 21.40 AfriNIC Region origin ASes announcing only one prefix: 600 AfriNIC Region transit ASes present in the Internet Routing Table: 331 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1050 Number of AfriNIC addresses announced to Internet: 108118272 Equivalent to 6 /8s, 113 /16s and 193 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 9154 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5938 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3625 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3520 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3373 1874 94 VNPT-AS-VN VNPT Corp, VN 9498 2591 499 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2314 847 429 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2287 11250 592 KIXS-AS-KR Korea Telecom, KR 4755 2164 440 215 TATACOMM-AS TATA Communications formerl 45090 2144 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7721 10630 2899 AMAZON-02, US 11492 4547 301 567 CABLEONE, US 7155 3894 265 33 VIASAT-SP-BACKBONE, US 22773 3700 3066 329 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3520 1320 63 SHAW, CA 16625 3457 1797 2505 AKAMAI-AS, US 749 3030 50577 2297 DNIC-AS-00749, US 7018 2586 24126 1560 ATT-INTERNET4, US 396982 2570 3483 365 GOOGLE-CLOUD-PLATFORM, US 30036 2563 368 384 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6951 1730 151 UNI2-AS, ES 39891 4486 264 55 ALJAWWALSTC-AS, SA 20940 4050 3399 175 AKAMAI-ASN1, NL 8551 3697 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2889 2290 906 ROSTELECOM-AS, RU 9009 2649 252 1359 M247, RO 34984 2252 358 609 TELLCOM-AS, TR 6849 2193 339 20 UKRTELNET, UA 58224 1797 939 526 TCI, IR 13188 1610 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10707 3336 602 Uninet S.A. de C.V., MX 10620 3464 507 850 Telmex Colombia S.A., CO 11830 2262 369 64 Instituto Costarricense de Electricidad 13999 2171 357 567 Mega Cable, S.A. de C.V., MX 28573 1332 2327 257 Claro NXT Telecomunicacoes Ltda, BR 3816 1291 740 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1290 339 523 Axtel, S.A.B. de C.V., MX 6147 1154 370 22 Telefonica del Peru S.A.A., PE 11664 1135 184 472 Techtel LMDS Comunicaciones Interactiva 26615 986 2466 43 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1529 537 31 RAYA-AS, EG 24863 1524 393 21 LINKdotNET-AS, EG 36992 1362 1520 269 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1014 67 40 ORANGE-COTE-IVOIRE, CI 36935 883 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 527 53 45 WANANCHI-, KE 37342 436 32 1 MOVITEL, MZ 2018 374 319 72 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10707 3336 602 Uninet S.A. de C.V., MX 9808 9154 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7721 10630 2899 AMAZON-02, US 12479 6951 1730 151 UNI2-AS, ES 7545 5938 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4547 301 567 CABLEONE, US 39891 4486 264 55 ALJAWWALSTC-AS, SA 20940 4050 3399 175 AKAMAI-ASN1, NL 7155 3894 265 33 VIASAT-SP-BACKBONE, US 22773 3700 3066 329 ASN-CXA-ALL-CCI-22773-RDC, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9154 9107 CHINAMOBILE-CN China Mobile Communications Grou 12479 6951 6800 UNI2-AS, ES 7545 5938 5248 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7721 4822 AMAZON-02, US 39891 4486 4431 ALJAWWALSTC-AS, SA 11492 4547 3980 CABLEONE, US 20940 4050 3875 AKAMAI-ASN1, NL 7155 3894 3861 VIASAT-SP-BACKBONE, US 8551 3697 3659 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3625 3604 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 46450 PILOT, US 23.131.188.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 23.131.190.0/24 Origin: 7018 ATT-INTERNET4, US 23.131.190.0/24 Transit: 6453 AS6453, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:38 /11:100 /12:295 /13:584 /14:1196 /15:2077 /16:13467 /17:8255 /18:13779 /19:24830 /20:42961 /21:50907 /22:108719 /23:96392 /24:537577 /25:0 /26:1 /27:1 /28:0 /29:1 /30:5 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5991 6951 UNI2-AS, ES 8151 4704 10707 Uninet S.A. de C.V., MX 39891 3541 4486 ALJAWWALSTC-AS, SA 11492 3455 4547 CABLEONE, US 6327 3328 3520 SHAW, CA 8551 3162 3697 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 2983 3894 VIASAT-SP-BACKBONE, US 22773 2728 3700 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2222 2563 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2045 2193 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1648 2:1209 3:168 4:5 5:4088 6:110 7:5 8:1542 9:1 11:172 12:1612 13:369 14:2366 15:287 16:75 17:372 18:396 20:243 21:4 22:188 23:6003 24:2443 25:4 27:2706 29:19 31:2481 32:103 34:8 35:95 36:1840 37:4615 38:3925 39:818 40:144 41:3919 42:1076 43:2293 44:303 45:16398 46:4149 47:370 49:1704 50:1935 51:374 52:1527 54:395 55:842 56:8 57:82 58:1714 59:1102 60:1005 61:2423 62:2596 63:1946 64:5622 65:2323 66:4905 67:3030 68:1373 69:4129 70:1258 71:655 72:2990 74:2602 75:1464 76:596 77:2336 78:1824 79:2915 80:2054 81:1674 82:1490 83:1230 84:1467 85:2973 86:751 87:1923 88:1170 89:3503 90:577 91:7638 92:1974 93:2556 94:3522 95:3882 96:1315 97:344 98:1173 99:740 100:69 101:1290 102:2518 103:30537 104:4587 105:485 106:828 107:2539 108:909 109:4327 110:2044 111:3269 112:2022 113:1494 114:1597 115:2009 116:1874 117:2471 118:2292 119:1885 120:1698 121:1038 122:2573 123:2135 124:1535 125:2164 128:1215 129:965 130:960 131:2001 132:826 133:400 134:1899 135:295 136:883 137:920 138:2581 139:1500 140:1026 141:1489 142:1407 143:1454 144:1192 145:351 146:1882 147:1503 148:2258 149:1867 150:861 151:1148 152:1958 153:458 154:3786 155:1412 156:1627 157:1288 158:1039 159:2239 160:2576 161:1425 162:3532 163:1457 164:1674 165:1643 166:826 167:1749 168:3822 169:921 170:4564 171:872 172:3516 173:3062 174:1033 175:1157 176:3621 177:4780 178:3557 179:2142 180:2398 181:3353 182:3226 183:1934 184:2363 185:19995 186:4629 187:3920 188:4106 189:3443 190:8999 191:1472 192:10975 193:8799 194:7184 195:5089 196:3068 197:2352 198:5937 199:6074 200:7655 201:5679 202:10223 203:10028 204:4599 205:3503 206:3753 207:3351 208:4096 209:4787 210:4159 211:2392 212:4036 213:3545 214:1104 215:55 216:6606 217:2633 218:1248 219:411 220:1782 221:952 222:665 223:1988 End of report